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Finding the Fourth Proportional to 239,820.56, 330,943.70 and 132,388.30

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Solution

The fourth proportional to 239,820.56, 330,943.70 and 132,388.30 is: 182,691.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,820.56 : 330,943.70 = 132,388.30 : x
  2. Step 2: Convert to fraction form
    239,820.56/330,943.70 = 132,388.30/x
  3. Step 3: Cross multiply
    239,820.56x = 330,943.70 × 132,388.30
  4. Step 4: Simplify right side
    239,820.56x = 43,813,073,838.71
  5. Step 5: Solve for x
    x = 43,813,073,838.71/239,820.56
  6. Step 6: Final answer
    x = 182,691.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.